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Sterling Mine, Antwerp, Jefferson Co., New York, USA

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Latitude & Longitude (WGS84): 44° 14' 18'' North , 75° 35' 28'' West
Latitude & Longitude (decimal): 44.23833,-75.59111
Köppen climate type:Dfb : Warm-summer humid continental climate


A former Fe mine located North of Antwerp. Reopened 1904 and closed 1910. Ore is soft, earthy hematite hosted in Precambrian quartz-chlorite schist. Produced an estimated 750,000 tons plus of ore. Workings feature an open pit (500 feet by 200 feet by 115 feet deep) plus underground workings to 200 feet deep. First identified occurrence of millerite in the US.

Many historical identifications of minerals (ankerite, ilmenite, stilpnomelane) have been shown to be incorrect. The early mineral, "chalcodite" appears to be the ferric-dominant member of the stilpnomelane group, but needs to be re-investigated. Robinson and Chamberlain (1984) showed that stilpnomelane group minerals from this location were ferric iron-rich. Three partial analyses of material of varying colors contained dominant ferric iron: green (FeO = 9.94 wt %, Fe2O3 = 25.26), green-brown (FeO = 8.46, Fe2O3 = 31.37), and golden brown (Fe) = 2.18, Fe2O3 = 35.34). "Ferristilpnomelane" was named by Winchell and Winchell (1951) for the slightly ferrian variety of the series and probably does not occur at this location. Ferrous-dominant stilpnomelane is not found at this location, either.

Mineral List


16 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 2 erroneous literature entries.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mesoproterozoic
1000 - 1600 Ma



ID: 3003624
Calcitic and dolomitic marble

Age: Mesoproterozoic (1000 - 1600 Ma)

Description: Predominantly; variably siliceous; in part with calcsilicate rock and amphibolite.

Lithology: Major:{marble}, Incidental:{calc silicate rock, amphibolite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 397, 1062.

New York State Museum Bull. 223,224, Newland, David H. (July-August 1919), The Mineral Resources of the State of New York: 126, 129.

Palache, C., Berman, H. & Frondel, C. (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834 pp.: 240.

Robinson, G.W. and Chamberlain, S.C. (1984). "Famous mineral localities: the Sterling Mine, Antwerp, New York." Mineralogical Record: 15(4): 199-216.

Rocks & Minerals (1984): 59: 223-224.

Mineralogical Record: 15(4): 199-216.

Mineralogical Record (1990): 21: 33.

Chamberlain, Steven C. (1995) Historic Mineral Feature: The First Millerite Locality in the United State: Historical Notes on the Sterling Mine, Antwerp, Jefferson County, New York. Matrix 4:82-90.

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